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Table Of Contents
EVOC 20 PolySynth Filter Parameters
The EVOC 20 PolySynth synthesis section has a simple lowpass filter. The filter is used for
rough signal shaping, before the signal is more precisely shaped by the individual bands
of the Formant Filter banks.
Cutoff knob: Sets the cutoff frequency of the lowpass filter. As you turn this knob to
the left, an increasing number of high frequencies are removed from the synthesizer
signal.
Resonance knob: Boosts or cuts the signal portion that surrounds the frequency defined
by the Cutoff knob.
Tip: Set cutoff as high as possible, and add a little resonance to achieve a nice, brilliant
high-end.
EVOC 20 PolySynth Envelope Parameters
The EVOC 20 PolySynth features a simple Attack/Release envelope generator, which is
used to control the level of the oscillators over time.
Attack slider: Determines the amount of time it takes for the oscillators to reach their
maximum level.
Release slider: Determines the amount of time it takes for the oscillators to reach their
minimum level, after the keys have been released.
150 Chapter 7 EVOC 20 PolySynth